John r



J.R ADAMS. PIRE ENGINE.

Patented Mayl, 1855 To all whomz'tmay concern.' u

` 1Be it knownthat I, zJoHN R. AnAMs,.of 1 Port Jervis, Orange county, Stateof New yYork, have invented `a new and useful Im- 1 proved Fire`-Engine;"and I do hereby `deing had to the annexed drawings, making a part of this specification,"` inwhich Y i n. l` Figure Al` is'averticalsection of my` im- `proved fire engine, Fig. 2, showing the planeof section. Fig. 2 is a plan or top moved. i l l 1 n Similar lettersof reference indicate corresponding parts the two figures.` i l" The nature of Inylinvention consists in having "a number :offcylinders placed radially in a circularband or ring, and having `said band or ring` encompassed `by a cam which is allowedto `work loosely around the band or ring.` The cylinders are provided with theusual pistons and valves, and the pistonsare operated;` by rotating the cam, "the piston rods `having rollers` attached to their outer ends, said rollers `fitting in the i groove of the cam; i

. n To enableothersskilledinthe art to fully i understand and construct my invention I will proceed to describe it. i

XA, represents `a ring. or` band inwhich are "placed radiallycylinders B,`\`B, B, the cylinders are representedinfFig. `2,but more or `less may be used. The cylinders at `their l heads (a) as shown byfdfotted lines in Fig. 2.

` i C, Fig.'l,`isthesuction pipe which-is sec red to the :fcylinole :joining the cylinderslvis providedfwith a n 1(6),`avalveto"eachcy1inder. `On the upper parts `of the cylinders at their i inders, and I-I, II,are-the piston rods.

i clare thatthe following is a full, clear, and exact descriptionpfthe same, reference be' view of ditto,` the `air chamber being re.

junction arekept separate` by partitions orl i i onftheir under sides f and at their junction. i. 'Ihe suctionpipe advalve seat D, on whichfarethree ball valves `junctionis securedanf airchamber E, with' e, e; e, are #hapless heads of `the eyi;

s ramena N JOHN` n. AnaMsnor ronmtrenvls, xNewyoer. i f l i l y FIRE-nnenvn Speciiflcatron` of Letters Patent No. 12,773, dated May 1, 1855.

shown yin Fig. 1. On the outer surface orl periphery of the ring or band I, there is a zig Zag rim J, having a groove (d) in its under Ysurface in which (e) attached to the outer ends of the piston rods H are fitted, see Fig. l, and dotted lines in Fig. 2. The rim J may have a suitable number of handles K, connected to it, one is shown in Fig.

2. 'Ihe ring or band I, rim J, and handles K, may be formed of a single casting.

The whole smachine may be supported by wheels L, as shown in Fig. l, the bearings of the axes of the wheel being connected by flanches on the ring or band A.

The engine is operated by rotating the rim J, which is in fact a cam, and the pis- 1 tion rods I-I, and, their heads G, are drawn in and out in consequence of the rollers (e) fitting in the groove (d), and the water passes upward successively in the cylinders B, through or around the valves (b) and is ejected successively from the cylinders `through the valves (c) and force pipe F,

the stream being continuous. The operation ofthe valves, and the use of the air chamber, being well known to all machinists and not difering essentially from those inuse, require no particular description.

By the above improvement the whole power applied to the machine acts continually upon the pistons and is exerted in an advantageous manner, and horses may be attached to the arms or handles K. In the ordinary re engines the power of one half Aof the men is lost or nearlyso, because the pumps are worked by reciprocating arms, and the power can not be effectually applied to the machine, and they can only be worked n by the fire men, while my improved engine may be worked with either men or horses.

The above invention may be used for ordinary pumps, and the cylinders B, and ring A, may if desired be placed vertically instead of horizontally. n i i l Having thus described my invention', what I claim as new and desire to secure by Lettons of the cylinders, in consequence of their ters Patent is f connection with the cam as herein shown 10 Having the cylinders B, placed radially and described.

in a band or ring A, and encompassing said 5 band or ring A, with a band or ring I, and JOHN R' ADAMS cam J, the band or ring I, and cam J, being Witnesses: allowed to rotate around the band or ring FRANCIS MARVIN, A, and cylinders B, and operating the pis- STEPHEN C. MIRTEENES. 

